CVE-2025-22037
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-22037
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-22037.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-22037
- Downstream
- Published
- 2025-04-16T14:11:55Z
- Modified
- 2025-10-30T23:00:15.914870Z
- Summary
- ksmbd: fix null pointer dereference in alloc_preauth_hash()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix null pointer dereference in allocpreauthhash()
The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauthinfo is not allocated. This patch add KSMBDSESSNEEDSETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d
- https://git.kernel.org/stable/c/b8eb243e670ecf30e91524dd12f7260dac07d335
- https://git.kernel.org/stable/c/c8b5b7c5da7d0c31c9b7190b4a7bba5281fc4780
- https://git.kernel.org/stable/c/ca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad
- https://git.kernel.org/stable/c/cce57cd8c5dead24127cf2308fdd60fcad2d6ba6
- https://www.zerodayinitiative.com/advisories/ZDI-25-310/
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedcce57cd8c5dead24127cf2308fdd60fcad2d6ba6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixed8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedb8eb243e670ecf30e91524dd12f7260dac07d335
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedc8b5b7c5da7d0c31c9b7190b4a7bba5281fc4780
Affected versions
v5.*
v5.13
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.21
v6.12.22
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.13.1
v6.13.10
v6.13.2
v6.13.3
v6.13.4
v6.13.5
v6.13.6
v6.13.7
v6.13.8
v6.13.9
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.14.1
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.100
v6.6.101
v6.6.102
v6.6.103
v6.6.104
v6.6.105
v6.6.106
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.7
v6.6.70
v6.6.71
v6.6.72
v6.6.73
v6.6.74
v6.6.75
v6.6.76
v6.6.77
v6.6.78
v6.6.79
v6.6.8
v6.6.80
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.9
v6.6.90
v6.6.91
v6.6.92
v6.6.93
v6.6.94
v6.6.95
v6.6.96
v6.6.97
v6.6.98
v6.6.99
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
{
"id": "CVE-2025-22037-024ce9b6",
"digest": {
"line_hashes": [
"40640551838881666992412891435356750114",
"287445069216143970143252157146317153442",
"272432220197545348692215718554704739346",
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"158215045584098059507582942883917511226",
"328299363384410295763884869006539661562",
"113803501980142141196269119362031329675",
"244647404035860198967322688899819607806",
"19240269759446072652502041473946465172"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/connection.h"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cce57cd8c5dead24127cf2308fdd60fcad2d6ba6",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-04cd84ec",
"digest": {
"length": 5207.0,
"function_hash": "51044291861950428742294976349810516179"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/smb2pdu.c",
"function": "smb2_sess_setup"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cce57cd8c5dead24127cf2308fdd60fcad2d6ba6",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-068839a4",
"digest": {
"line_hashes": [
"325448000465391200100892215415955313038",
"21027551650952136140564420539977572300",
"318944161087451046256217667886885275348",
"129819164659489964156793981930181478976",
"258441204198463208476705604174028848564",
"247942568155215386677883202851520230913",
"170526147657533789799389891840977733144",
"243301067770454264198809896844511470745",
"81851043980562522459033969244191262560"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/mgmt/user_session.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-07f17215",
"digest": {
"line_hashes": [
"325448000465391200100892215415955313038",
"21027551650952136140564420539977572300",
"318944161087451046256217667886885275348",
"129819164659489964156793981930181478976",
"258441204198463208476705604174028848564",
"247942568155215386677883202851520230913",
"170526147657533789799389891840977733144",
"243301067770454264198809896844511470745",
"81851043980562522459033969244191262560"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/mgmt/user_session.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c8b5b7c5da7d0c31c9b7190b4a7bba5281fc4780",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-09b7312b",
"digest": {
"length": 1181.0,
"function_hash": "166258855410913138801266803317107526426"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/smb2pdu.c",
"function": "smb2_session_logoff"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b8eb243e670ecf30e91524dd12f7260dac07d335",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-0a4a6696",
"digest": {
"line_hashes": [
"325448000465391200100892215415955313038",
"21027551650952136140564420539977572300",
"318944161087451046256217667886885275348",
"129819164659489964156793981930181478976",
"258441204198463208476705604174028848564",
"247942568155215386677883202851520230913",
"170526147657533789799389891840977733144",
"243301067770454264198809896844511470745",
"81851043980562522459033969244191262560"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/mgmt/user_session.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b8eb243e670ecf30e91524dd12f7260dac07d335",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-0ddd6001",
"digest": {
"line_hashes": [
"325448000465391200100892215415955313038",
"21027551650952136140564420539977572300",
"318944161087451046256217667886885275348",
"129819164659489964156793981930181478976",
"258441204198463208476705604174028848564",
"247942568155215386677883202851520230913",
"170526147657533789799389891840977733144",
"243301067770454264198809896844511470745",
"81851043980562522459033969244191262560"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/mgmt/user_session.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-126a4c91",
"digest": {
"line_hashes": [
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"268659658837504198401863032526307706032",
"51448650403117895317813221185544537069",
"289873519735553229074859803961269895940",
"237716553558632709093956764661326776463",
"130979960009992921730539082423788934756",
"217046446482590909808361427330581534764",
"249667312923185645835762253499634725836",
"335881720498473020984678720935303353685",
"335590987076451830758487913687396859075",
"327422833182963144665463407599434122618",
"54690712854944189062554638213604010981",
"267450405378082489665943207360784785230",
"87180532630101454121491995230000699392",
"195554818792450739061977712802667231779",
"8404521866083984629593440128119862089",
"99133310780563828978719478026243020695",
"294218342844689681484611504057682437036"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/smb2pdu.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cce57cd8c5dead24127cf2308fdd60fcad2d6ba6",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-1e30b209",
"digest": {
"length": 294.0,
"function_hash": "192398793024694815669275777632824046261"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/smb2pdu.c",
"function": "alloc_preauth_hash"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cce57cd8c5dead24127cf2308fdd60fcad2d6ba6",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-2d18aff7",
"digest": {
"length": 294.0,
"function_hash": "192398793024694815669275777632824046261"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/smb2pdu.c",
"function": "alloc_preauth_hash"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-4c24eba6",
"digest": {
"length": 1181.0,
"function_hash": "166258855410913138801266803317107526426"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/smb2pdu.c",
"function": "smb2_session_logoff"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-5dac30da",
"digest": {
"length": 841.0,
"function_hash": "34318263936675239701043990964831082586"
},
"signature_type": "Function",
"target": {
"file": "fs/smb/server/mgmt/user_session.c",
"function": "destroy_previous_session"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cce57cd8c5dead24127cf2308fdd60fcad2d6ba6",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-6494f613",
"digest": {
"line_hashes": [
"297004126756288227908285474675522726703",
"268659658837504198401863032526307706032",
"296624723961167180803562079528672614966",
"305992643832729861349185135912817091989",
"237716553558632709093956764661326776463",
"330562563618925551574172467480594720498",
"283338264937735944827811546257209429354",
"105309349186937946931560644591162732123",
"207897301114757964331025186930230631017",
"188280945983518673268505405196069810786",
"327422833182963144665463407599434122618",
"54690712854944189062554638213604010981",
"267450405378082489665943207360784785230",
"87180532630101454121491995230000699392",
"195554818792450739061977712802667231779",
"8404521866083984629593440128119862089",
"99133310780563828978719478026243020695",
"294218342844689681484611504057682437036"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
"file": "fs/smb/server/smb2pdu.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d",
"signature_version": "v1",
"deprecated": false
},
{
"id": "CVE-2025-22037-6ffe6786",
"digest": {
"line_hashes": [
"325448000465391200100892215415955313038",
"21027551650952136140564420539977572300",
"318944161087451046256217667886885275348",
"129819164659489964156793981930181478976",
"258441204198463208476705604174028848564",
"247942568155215386677883202851520230913",
"175447026143323302902636364560442388817",
"264541093609604709744525843454733088761",
"339565361653632832701298007524429225103"
],
"threshold": 0.9
},
"signature_type": "Line",
"target": {
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